diff --git a/action.yml b/action.yml
index 04e27304..b9d95e17 100644
--- a/action.yml
+++ b/action.yml
@@ -8,6 +8,7 @@ inputs:
   architecture:
     description: 'The architecture (x86, x64) of the JDK.'
     required: true
+    default: 'x64'
   jdkFile:
     description: 'Path to where the compressed JDK is located. The path could be in your source repository or a local path on the agent.'
     required: true